Home / 1,176,428.16-1,623,486.72-667,119.36

Finding the Fourth Proportional to 1,176,428.16, 1,623,486.72 and 667,119.36

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Solution

The fourth proportional to 1,176,428.16, 1,623,486.72 and 667,119.36 is: 920,633.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,176,428.16 : 1,623,486.72 = 667,119.36 : x
  2. Step 2: Convert to fraction form
    1,176,428.16/1,623,486.72 = 667,119.36/x
  3. Step 3: Cross multiply
    1,176,428.16x = 1,623,486.72 × 667,119.36
  4. Step 4: Simplify right side
    1,176,428.16x = 1,083,059,421,614.90
  5. Step 5: Solve for x
    x = 1,083,059,421,614.90/1,176,428.16
  6. Step 6: Final answer
    x = 920,633.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.